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Military Guns and Ammunition

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This is intended for people interested in the subject of military guns and their ammunition, with emphasis on automatic weapons.

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Types of polymer used to make gun parts.   General Military Discussion

Started 6-Nov by tidusyuki; 706 views.
In reply toRe: msg 1
tidusyuki

From: tidusyuki

7-Nov

Thanks everyone, what about polymer used to make lower receivers?

I assume they need to be made stronger compared to stocks and grips to be able to withstand the force and friction of the moving parts inside it.

I know HK used to reinforce their grip assembly interior with steel.

But it looks modern polymer lowers is strong enough without any reinforcing. Like SCAR, Bren, APC, and ACR cmiiw.

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